The chromatograms obtained from the gas chromatography‐electron ionization mass spectrometric (GC‐EI‐MS) analysis of extracts containing G‐nerve agents in the presence of diesel, gasoline, etc., are dominated by hydrocarbon backgrounds that “mask” the G‐nerve agents, leading to severe difficulties in identification. This paper presents a practical solution for this challenge by transferring the G‐nerve agents from […]

Ahhhh chocolate! Who doesn't love chocolate? The analysis of volatile organic compounds (VOCs) emanating from environment, plants, food or food ingredients has been the basis for many studies aiming at categorizing samples or sites. For this purpose, global VOCs profiles may be used as fingerprints of the samples, sometimes referred to as “volatilome”. In this […]

Hydralazine has been widely employed in the development of drugs, derivatization reagents and ligands. In the present work, we reported a new type of dehydrogenated ion [M−H]+ that was produced from the hydralazine derivative of hexanal in electrospray ionization mass spectrometry (ESI‐MS). The formation of [M−H]+ ions in the ESI‐MS was found to be independent […]

Protic ionic liquids are promising candidates for many applications, including as spacecraft propellants. For both fundamental interest and understanding clustering and dissociation during electrospray‐based propulsion, it is useful to explore the dissociation pathways of protic ionic liquid clusters, as well as the factors affecting the relative contributions of each pathway to the observed MS/MS spectra. […]

The cover image is based on the Research Article Investigation of amodiaquine localization in liver lobules using matrix‐assisted laser desorption/ionization imaging mass spectrometry by Kerri J. Grove et al., https://doi.org/10.1002/rcm.8339.

Rationale For isotope delta analysis, it is preferable to have at least two matrix‐matched reference materials whose isotope delta values encompass those of the samples to be analyzed. The National Research Council Canada (NRC) has developed three sugar Certified Reference Materials (CRMs), BEET‐1 (beet sugar), GALT‐1 (galactose), and FRUT‐1 (fructose), to be collectively used for […]

Rationale The presence of pharmaceuticals in water is a worldwide concern due to potential damage to human and environmental health. For example, compounds such as the β‐blocker atenolol (ATE), widely used for the treatment of cardiac disease, are detected in drinking water since conventional water treatment plants are not designed to remove them. Thus, the […]

Rationale Stable isotopes analysis (SIA) is a powerful tool to estimate dietary links between polar zooplankton. However, the presence of highly variable 12C‐rich lipids may skew estimations as they are depleted in 13C relative to proteins and carbohydrates, consequently masking carbon signals from food sources. Lipid effects on pteropod‐specific values requires examining, since accounting for […]